MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The presence of numerous unknown URLs suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://av-jet.ru/userfiles/file/29639869445.pdf In PDF document text
- https://piphoto.tw/uploads/files/202109080136537147.pdfIn PDF document text
- http://simonkuehner.de/gfx/userfiles/files/70908567776.pdfIn PDF document text
- https://12waktu.com/contents/files/kamixefefafexomegodar.pdfIn PDF document text
- http://insureavisitor.com/userfiles/file/puxawefinawel.pdfIn PDF document text
- https://gulfb2b.com/userfiles/file/49286686644.pdfIn PDF document text
- https://lekkermooi.nl/userfiles/file/lanubonasusajenudi.pdfIn PDF document text
- http://charivne.info/images/file/fudavetuliwizijis.pdfIn PDF document text
- http://businessvaluationapp.com/fck_files/file/konavepijonugukoxomuti.pdfIn PDF document text
- http://gamjagolla.com/uploads/files/wijekikower.pdfIn PDF document text
- http://stavebnevyrobky.sk/www/upload/files/miwevatizitev.pdfIn PDF document text
- http://ecohort.com/userfiles/files/67277570860.pdfIn PDF document text
- https://onutglen.com/caningest/images/file/84844927951.pdfIn PDF document text
- https://komunalno.vrgorac.hr/files/10897687965.pdfIn PDF document text
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/62a04a23a282bc97f53ed84fc683e2aa/84202289641.pdfIn PDF document text
- http://vlaamspatientenplatform.be/_plugin/ckfinder/userfiles/files/piwalig.pdfIn PDF document text
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139fac6c38c0---18697102371.pdfIn PDF document text
- http://matchonusa.com/uploads/files/5283038704.pdfIn PDF document text
- http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/wegakadekasajij.pdfIn PDF document text
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/37ffa3f62a4a3ff3388b1ab8bf0920dd/girexesuxurutapilexe.pdfIn PDF document text
- https://alpinashop.bg/files/2319844405.pdfIn PDF document text
- http://patronusalapitvany.hu/public_html/upload/bigirubesavalave.pdfIn PDF document text
- https://hiddencliff.kr/FileData/ckfinder/files/20210916_25A429D35F4F0D83.pdfIn PDF document text
- https://anitt.in/ckfinder/userfiles/files/dogumoxedupu.pdfIn PDF document text
- http://bushurov.ru/images/files/75053187004.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=free+fire+latest+version+download+apkPDF link annotation
- https://www.thc.gda.pl/ckfinder/userfiles/files/42316436885.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dfcd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFCD | 17648 bytes |
SHA-256: 63c6d3fedfc69794fd9929532ff81a2ed4074f4ae41b75c2af90b7c6e1e0f2b6 |
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font_01_sfnt_off00010d31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D31 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012548.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12548 | 10712 bytes |
SHA-256: 4056d42ee970cff2dea60907c72f86ce946d87ec463c84d3b970c9e64325882c |
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